Let's go, Octonauts! The Octonauts are out on the reef when a scary whitetip shark attacks the GUP-A! A tiny pilot fish offers to lend a fin, giving Barnacles a brilliant idea: Pilot fish get their food by eating gunk off of things, and whitetip sharks offer pilot fish protection in return for cleaning their teeth. Maybe all this whitetip shark needs is a friend. Octonauts, let’s do this!